Revert r13699 "Debugger: ScopeMirror has N^2 algorithm when building closure mirrors." because of WebKit crashes.

BUG=v8:2554
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/12321108

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13714 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Zap holes in dependent code array after deoptimizing a code group.

BUG=crash on GC stress builder

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/12315077

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13715 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix bugs in generating and printing of Crankshaft stubs

Review URL: https://codereview.chromium.org/12317044

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13716 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Made Isolate a mandatory parameter for everything Handle-related.

Unified parameter order of CreateHandle with the rest of v8 on the way. A few
Isolate::Current()s had to be introduced, which is not nice, and not every place
will win a beauty contest, but we can clean this up later easily in smaller steps.

Review URL: https://codereview.chromium.org/12300018

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13717 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Prepare push to trunk.  Now working on version 3.17.5.

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/12315080

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13718 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge pull request #2 from v8/master

Sync V8